Every time when EJB is called by MDB to send message to OutQueue this warning is logged in EAP 5.2.0 server:

2014-11-14 14:25:52,185 WARN [org.hornetq.core.protocol.core.impl.HornetQPacketHandler] (Old I/O server worker (parentId: 1469453217, [id: 0x579613a1, /127.0.0.1:5447])) Client is not being consistent on the request versioning. It just sent a version id=122 while it informed 123 previously

This warning appears to be harmless but it floods the server.log. This can be unacceptable for our users/customers.